/Engine/Source/Runtime/GameplayTags/Classes/GameplayTagsManager.h
Checks node tree to see if aFGameplayTagNodewith the name exists
A shared pointer to theFGameplayTagNodefound, or NULL if not found.
[TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [FGameplayTagNode](API\Runtime\GameplayTags\FGameplayTagNode) > FindTagNode ( [FName](API\Runtime\Core\UObject\FName) TagName ) const